* {
    font-family: "楷体";
    margin: 0;
    padding: 0;
}

body {
    background: #F7FBFA;
}

h1 {
    text-align: center;
    font-family: "楷体";
    text-shadow: 3px 3px 1px #9CC, 3px 3px 1px #999999;
}

#mainbody {
    margin: 10px auto;
    width: 800px;
    height: 500px;
}

#top {
    width: 100%;
    height: 220px;
    top: 0;
}

.hr {
    color: #D6DAD9;
    width: 128px;
    margin-left: 30px;
    margin-top: 3px;
    margin-right: 30px;
    size: 2px;
}

dl {
    font-size: 14px;
    float: left;
}

.button {
    margin-left: 30px;
    margin-right: 30px;
}

.table {
    vertical-align: top;
}

dd {
    line-height: 20px;
}

.cn {
    margin: 1em;
}

#secondtop {
    margin-left: -20px;
    margin-right: 30px;
}

#content {
    height: 15cm;
}

#content>div {
    height: 100%;
    display: inline-block;
    margin-top: 2mm;
}

#content>div:first-child {
    width: 37%;
    float: left;
}

#content>div:last-child {
    width: 60%;
    float: right;
    background-color: aqua;
}


/*item样式*/

.list-item {
    background-color: rgba(0, 197, 154, 0.74);
    color: azure;
    height: 3em;
    transition: all 0.5s ease-out;
    margin-top: 5px;
    position: relative;
}

.list-item:first-child {
    margin-top: 0;
}

.list-item:hover {
    height: 200px;
}

.list-item-logo {
    opacity: 1;
    transition: all 0.5s ease-in;
    position: absolute;
    left: 0;
    top: 0;
    line-height: 2;
    font-size: 1.5em;
    width: 100%;
}

.list-item:hover .list-item-logo {
    opacity: 0;
}

.list-item-logo>div:first-child {
    float: left;
    padding-left: 10px;
}

.list-item-logo>div:last-child {
    float: right;
    padding-right: 5px;
}